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參數資料
| 型號： | TCM1617MQR |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | SMBus Thermal Sensor with External Diode Input |
| 中文描述： | 的SMBus溫度傳感器與外部二極管輸入 |
| 文件頁數： | 12/14頁 |
| 文件大?。?/td> | 74K |
| 代理商： | TCM1617MQR |
12
SMBus Thermal Sensor with External Diode Input
TCM1617
TCM1617-1 2/5/99
2001 Microchip Technology Inc. DS21485A
Status Register (Status), 8-Bits, Read Only:
Status Register (Status)
D[7]
Busy
D[6]
Flag1
D[5]
Flag2
D[4]
Flag3
D[3]
Flag4
D[2]
Flag5 Reserved
D[1]
D[0]
Bit
POR
State
Function
Operation*
D[7]
0
Signal A/D
converter is busy.
Interrupt flag for
INT_HLIM event
Interrupt flag for
INT_LLIM event
Interrupt flag for
EXT_HLIM event
Interrupt flag for
EXT_LLIM event
External diode
“
fault
”
flag
Reserved
–
Always
returns zero.
1 = A/D busy,
0 = A/D idle
1 = interrupt occurred,
0 = none
1 = interrupt occurred,
0 = none
1 = interrupt occurred,
0 = none
1 = interrupt occurred,
0 = none
1 = external diode fault,
0 = external diode OK
N/A
D[6]
0
D[5]
0
D[4]
0
D[3]
0
D[2]
0
D[1:0]
0
NOTE:
All status bits are cleared after a read operation is performed on
STATUS. The EXT_TEMP register will read +127
°
C if an external
diode
“
open
”
is detected.
Name
Description
POR
State
Read Write
INT_TEMP
Internal sensor
temperature
(2
’
s complement)
External sensor
temperature
(2
’
s complement)
STATUS register
CONFIG register
0000 0000b*
EXT_TEMP
0000 0000b*
STATUS
CONFIG
CONV_RATE A/D conversion
rate register
INT_HLIM
Internal high
limit
(2
’
s complement)
INT_LLIM
Internal low
limit
(2
’
s complement)
EXT_HLIM
External high
limit
(2
’
s complement)
EXT_LLIM
External low
limit
(2
’
s complement)
MFR_ID
ASCII for letter
“
T
”
0101 0100b
(Microchip)
MFR_REV
Serial device
revision#
0000 0000b
0000 0000b
0000 0010b
0111 1111b
1100 1001b
0111 1111b
1100 1001b
**
NOTE:
*The INT_TEMP and EXT_TEMP register immediately will be
updated by the A/D converter after POR. If STBY# is low at power-
up, INT_TEMP and EXT_TEMP will remain in POR state (0000
0000b). **MFR_REV will sequence 01h, 02h, 03h, etc. by mask-
ing changes.
The TCM1617
’
s register set is summarized below. All
registers are 8-bits wide.
Manufacturer
’
s Identification Register (MFR_ID)
D[7]
MSB
D[6]
X
D[5]
X
D[4]
X
D[3]
X
D[2]
X
D[1]
X
D[0]
LSB
Manufacturer
’
s Identification Register
(MFR_ID), 8-Bits, Read Only:
Manufacturer
’
s Revision Register (MFR_REV)
D[7]
MSB
D[6]
X
D[5]
X
D[4]
X
D[3]
X
D[2]
X
D[1]
X
D[0]
LSB
Manufacturer
’
s Revision Register
(MFR_REV), 8-Bits, Read Only:
Register Set Summary:
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